OSPF Operational Commands

OSPF Show Commands

OSPF Summary

Displays the OSPF protocol summary information.

Syntax:

show ospf summary <options>

Option	Description
-	Without any option, the command displays the information for all instances.
instance <instance-name>	OSPF summary information for the given instance.

Option

Description

Without any option, the command displays the information for all instances.

instance <instance-name>

OSPF summary information for the given instance.

Example: OSPF summary for the default instance

supervisor@rtbrick>SPINE01: op> show ospf summary
Instance: default
  General information:
    Router ID: 198.51.100.15, Area count: 1, Flood interval: 1000
    Opaque capability: True, Segment routing capability: True
    SRGB base: 10000, SRGB range: 100, SRGB label values: 10000-10099
    Flags: OPAQUE|SR|-|-|-|-|-, Cost: 10000
  Area: 198.51.100.0
    Interface count: 7
      Interface: ifl-0/0/0/1
        Address: 198.51.100.85, State: Backup, Type: broadcast, Priority: 1
        Designated router: 198.51.100.0, Backup designated router: 198.51.100.1
        Hello interval: 10 sec, Dead interval: 40 sec
        Cost: 10000, MTU: 1500
      Interface: ifl-0/0/0/100
        Address: 198.51.100.86, State: P2P, Type: p2p, Priority: 1
        Designated router: 198.51.100.101, Backup designated router: 198.51.100.2
        Hello interval: 10 sec, Dead interval: 40 sec
        Cost: 20000, MTU: 1500
      Interface: ifl-0/0/1/1
        Address: 198.51.100.87, State: P2P, Type: p2p, Priority: 1
        Designated router: 198.51.100.102, Backup designated router: 198.51.100.3
        Hello interval: 10 sec, Dead interval: 40 sec
        Cost: 40000, MTU: 1500
<...>

OSPF Interface

Displays OSPF interface information.

Syntax:

show ospf interface <options>

Option	Description
-	Without any option, the command displays the interface information for all instances.
detail	Displays the detailed interface information.
interface <interface-name> <detail>	Displays detailed information for the specified interface.
instance <instance-name>	OSPF interface information for the given instance.
instance <instance-name> <detail>	Displays detailed information for the given instance.
instance <instance-name> <interface-name>	Displays information for a specified interface for a given instance.

Option

Description

Without any option, the command displays the interface information for all instances.

detail

Displays the detailed interface information.

interface <interface-name> <detail>

Displays detailed information for the specified interface.

instance <instance-name>

OSPF interface information for the given instance.

instance <instance-name> <detail>

Displays detailed information for the given instance.

instance <instance-name> <interface-name>

Displays information for a specified interface for a given instance.

Example 1: OSPF interface information for the default instance

supervisor@rtbrick>SPINE01: op> show ospf interface
Instance: default
Interface     Area           IP Address     State    Type      Cost   Priority DR          BDR              MTU
ifl-0/0/0/1   0.0.0.0        198.51.100.85  Backup   broadcast  10000  1    198.51.100.27 198.51.100.85     1500
ifl-0/0/0/100 0.0.0.0        198.51.100.77  P2P      p2p        20000  1    198.51.100.0  198.51.100.0      1500
lo-0/0/0/1    0.0.0.0        198.51.100.15  P2P      p2p        10000  1    198.51.100.0  198.51.100.0      1500

Example 2: OSPF interface detailed information

supervisor@rtbrick>SPINE01: cfg> show ospf interface ifl-0/0/1/100 detail
Instance: default
  Interface: ifl-0/0/1/100, Area: 0.0.0.0
    State: P2P, Type: p2p, Primary IPv4: 12.1.0.1, Router priority: 1
    Designated router: 0.0.0.0, Backup designated router: 0.0.0.0
    Hello interval: 10, Router dead interval: 40, Wait timer: 40
    Metric: 20000, IPv4 MTU: 1500, Auth type: md5
    Capabilities: *|-|-|-|-|-|E|*
    Received messages:
      Hello: 2007, Data descriptor: 2, LS request: 1
      LS update: 120, LS acknowledgement: 101
    Sent messages:
      Hello: 2007, Data descriptor: 3, LS request: 0

OSPF Neighbor

Displays OSPF neighbor information.

Syntax:

show ospf neighbor <options>

Option	Description
-	Without any option, the command displays the neighbor information for all instances.
instance <instance-name>	OSPF neighbor information for the given instance.
detail	Displays the detailed neighbor information.
interface <interface-name>	Displays the neighbor information for a specified interface.
instance <instance-name> detail	Displays detailed OSPF neighbor information for the given instance.
instance <instance-name> interface <interface-name>	Displays OSPF neighbor information for the specified interface for the given instance.
instance <instance-name> interface <interface-name> detail	Displays detailed OSPF neighbor information for the specified interface for the given instance.
interface <interface-name> detail	Displays detailed neighbor information for a specified interface.

Option

Description

Without any option, the command displays the neighbor information for all instances.

instance <instance-name>

OSPF neighbor information for the given instance.

detail

Displays the detailed neighbor information.

interface <interface-name>

Displays the neighbor information for a specified interface.

instance <instance-name> detail

Displays detailed OSPF neighbor information for the given instance.

instance <instance-name> interface <interface-name>

Displays OSPF neighbor information for the specified interface for the given instance.

instance <instance-name> interface <interface-name> detail

Displays detailed OSPF neighbor information for the specified interface for the given instance.

interface <interface-name> detail

Displays detailed neighbor information for a specified interface.

Example: OSPF neighbor information for the default instance

supervisor@rtbrick>SPINE01: op> show ospf neighbor
Instance: default
Address        Interface    Router ID      Area         State  Priority  DR        BDR            Uptime          Expires
198.51.100.27 ifl-0/0/0/1   198.51.100.20  0.0.0.0      Full  1   198.51.100.27  198.51.100.85  0d:01h:31m:57s  38 Seconds
198.51.100.4  ifl-0/0/0/100 198.51.100.20  0.0.0.0      Full  1   198.51.100.0   198.51.100.0   0d:01h:32m:36s  39 Seconds

OSPF Database

Displays information from OSPF link-state database that contains data about link-state advertisements (LSAs).

Syntax:

show ospf database <options>

Option	Description
advertising-router <router-id>	Displays LSDB information for the specified advertising router.
advertising-router <router-id> detail	Displays the detailed LSDB information for the specified advertising router.
advertising-router <router-id> ls-id <ls-id>	Displays the LSDB information for the specified link-state ID for the advertising router.
advertising-router <router-id> ls-type external	Displays the LSDB information for the specified LSA type for the advertising router. Link-state advertisement type includes external, network, router, and summary.
detail	Displays detailed information from LSDB.
instance <instance-name>	Displays OSPF database information for the given instance.
ls-id <ls-id>	OSPF database information for a specific link-state identifier.
ls-type <type>	OSPF database information for the specified link-state type. Link-state advertisement type includes external, network, router and summary.
area <area-id>	Displays database information for the specified OSPF area.
area <area-id> advertising-router <router-id>	Displays LSDB information for the specified advertising router for a specified OSPF area.
area <area-id> detail	Displays detailed LSDB information for the specified OSPF area.
area <area-id> ls-id <ls-id>	Displays LSDB information for the specified link-state identifier for the specified OSPF area.
area <area-id> ls-type <type>	Displays LSDB information for the specified link-state type for the specified OSPF area. Link-state advertisement type includes external, network, router, and summary.
instance <instance-name> advertising router <router-id>	Displays LSDB information for the specified advertising router for the given instance.
instance <instance-name> area <area-id>	Displays LSDB information for the specified area for the given instance.
instance <instance-name> ls-id <ls-id>	Displays LSDB information for the specified link-state identifier for the given instance.
instance <instance-name> ls-type <type>	Displays LSDB information for the specified type of the given instance. Link-state advertisement type includes external, network, router and summary.

Option

Description

advertising-router <router-id>

Displays LSDB information for the specified advertising router.

advertising-router <router-id> detail

Displays the detailed LSDB information for the specified advertising router.

advertising-router <router-id> ls-id <ls-id>

Displays the LSDB information for the specified link-state ID for the advertising router.

advertising-router <router-id> ls-type external

Displays the LSDB information for the specified LSA type for the advertising router. Link-state advertisement type includes external, network, router, and summary.

detail

Displays detailed information from LSDB.

instance <instance-name>

Displays OSPF database information for the given instance.

ls-id <ls-id>

OSPF database information for a specific link-state identifier.

ls-type <type>

OSPF database information for the specified link-state type. Link-state advertisement type includes external, network, router and summary.

area <area-id>

Displays database information for the specified OSPF area.

area <area-id> advertising-router <router-id>

Displays LSDB information for the specified advertising router for a specified OSPF area.

area <area-id> detail

Displays detailed LSDB information for the specified OSPF area.

area <area-id> ls-id <ls-id>

Displays LSDB information for the specified link-state identifier for the specified OSPF area.

area <area-id> ls-type <type>

Displays LSDB information for the specified link-state type for the specified OSPF area. Link-state advertisement type includes external, network, router, and summary.

instance <instance-name> advertising router <router-id>

Displays LSDB information for the specified advertising router for the given instance.

instance <instance-name> area <area-id>

Displays LSDB information for the specified area for the given instance.

instance <instance-name> ls-id <ls-id>

Displays LSDB information for the specified link-state identifier for the given instance.

instance <instance-name> ls-type <type>

Displays LSDB information for the specified type of the given instance. Link-state advertisement type includes external, network, router and summary.

Example 1: OSPF database information for the default instance

supervisor@rtbrick>SPINE01: cfg> show ospf database
Instance: default, Area: 0.0.0.0
  Type            Link State ID   Advertising Router   Age     Sequence     Checksum     Cost   Link Count
  Router          198.51.100.15   198.51.100.15         71      0x80000009     0x7cb6        -      4
  Router          198.51.100.20   198.51.100.20         57      0x8000000a     0x2f7d        -      4
  Network         198.51.100.27   198.51.100.20         329     0x80000004     0x7e5c        -      2
  Summary-Network 198.51.100.65   198.51.100.20         374     0x80000004     0xbc36    15000      -
  Summary-Network 198.51.100.22   198.51.100.20         374     0x80000004     0x7aae    10000      -
  Summary-Asbr    198.51.100.32   198.51.100.20         324     0x80000004     0xe7aa    30000      -
Instance: default
  Type            Link State ID   Advertising Router    Age      Sequence     Checksum    Cost    Link Count
  External        198.50.100.53   198.51.100.32         374      0x80000004    0xba29     16777214   -

Example 2: OSPF database detailed information

supervisor@rtbrick>SPINE01: cfg> show ospf database detail
Instance: default, Area: 0.0.0.0 LSAs
  LSA ID: 198.51.100.15
    Advertising router: 198.51.100.15, LSA type: Router
    Sequence number: 0x8000000f, Checksum: 0x1831, LSA age: 1671
    Length: 132, Options: *|-|-|-|-|-|E|*, Flags: -|-|-|-
    Number of links: 9
      Link ID: 198.51.100.20
        Link data: 198.51.100.30, Type: P2P
        Type of service: 0, Metric: 20000
      Link ID: 198.51.100.15
        Link data: 255.255.255.252, Type: Stub
        Type of service: 0, Metric: 20000
<...>

Example 3: OSPF database for an advertising router

supervisor@rtbrick>SPINE01: cfg> show ospf database advertising-router 198.51.100.15
Instance: default, Area: 0.0.0.0
  Type       Link State ID   Advertising Router   Age    Sequence   Checksum     Cost  Link Count
  Router     198.51.100.15    198.51.100.15         690    0x80000009 0x7cb6        -          4

OSPF SPF Result

Displays SPF results.

Syntax:

show ospf spf result <options>

Option	Description
-	Without any option, the command displays the SPF result of all instances.
area <area-id>	Displays SPF result for the specified area.
instance <instance-name>	Name of the instance
node-id <node-id>	Displays SPF result for the specified node identifier.
area <area-id> <node-id>	Displays SPF result for the specified node identifier for a specified area.
instance <instance-name> area <area-id>	Displays SPF result for the specified area for a given instance.
instance <instance-name> node-id <node-id>	Displays SPF result for the specified node identifier for a given instance.

Option

Description

Without any option, the command displays the SPF result of all instances.

area <area-id>

Displays SPF result for the specified area.

instance <instance-name>

Name of the instance

node-id <node-id>

Displays SPF result for the specified node identifier.

area <area-id> <node-id>

Displays SPF result for the specified node identifier for a specified area.

instance <instance-name> area <area-id>

Displays SPF result for the specified area for a given instance.

instance <instance-name> node-id <node-id>

Displays SPF result for the specified node identifier for a given instance.

Example 1: OSPF SPF Result for the default instance

supervisor@rtbrick>SPINE01: op> show ospf spf result
Instance: default, Area: 0.0.0.0
Node ID       Type     Cost     Advertising Router  Flags      Neighbor Node     Interface      Nexthop
198.51.100.27 NETWORK  10000    198.51.100.20       -|-|-|-    -                 local          -
198.51.100.15 ROUTER   0        198.51.100.15       -|-|-|-    -                 local          -
198.51.100.20 ROUTER   10000    198.51.100.20       -|-|-|B    198.51.100.20     ifl-0/0/0/1    198.51.100.27
                                                               198.51.100.20     ifl-0/0/0/100  198.51.100.4

Example 2: OSPF SPF Result for the specified node identifier for the given area

supervisor@rtbrick>SPINE01: op> show ospf spf result area 0.0.0.0 node-id 198.51.100.27
Instance: default, Area: 0.0.0.0
Node ID        Type      Cost     Advertising Router    Flags     Neighbor Node    Interface    Nexthop
198.51.100.27  NETWORK   10000    198.51.100.20         -|-|-|-    -               local        -

OSPF Route

Displays OSPF routing table information.

Syntax:

show ospf route <options>

Option Description

Option	Description
-	Without any option, the command displays the OSPF route information for all instances.
instance <instance-name>	OSPF route information for the given instance.
instance <instance-name> <afi>	Displays OSPF route information for the specified address family and instance. The supported AFI value is IPv4.
instance <instance-name> AFI <ipv4> <unicast \| labeled-unicast>	Displays OSPF route information for the specified SAFI for a specified address family.
instance <instance-name> label <label>	Displays OSPF route information for the specified label and instance.
instance <instance-name> mpls unicast label <label> \| type <type>	Displays OSPF route information for the specified MPLS unicast label or type for the instance.
prefix <ip>	Displays OSPF route information for the specified match prefix.
type	Displays information for OSPF route type. The route types include `external-type-1`, `external-type-2`, `inter-area`, `intra-area`, and `ospf-direct`.
ipv4 prefix <ip>	Displays OSPF route information for the specified IPv4 prefix.
label <label>	Displays information about the OSPF-labeled routes.
mpls unicast <label \| type>	Displays information about OSPF MPLS routes.
area-border	Displays the OSPF Area Border Router (ABR) information. Refer to section "3.1.7. OSPF Route ABR" for the interface configuration details.
autonomous-system-boundary	Displays Autonomous System Border Router information. Refer to section "3.1.7. OSPF Route ABR" for the interface configuration details.

Without any option, the command displays the OSPF route information for all instances.

instance <instance-name>

OSPF route information for the given instance.

instance <instance-name> <afi>

Displays OSPF route information for the specified address family and instance. The supported AFI value is IPv4.

instance <instance-name> AFI <ipv4> <unicast | labeled-unicast>

Displays OSPF route information for the specified SAFI for a specified address family.

instance <instance-name> label <label>

Displays OSPF route information for the specified label and instance.

instance <instance-name> mpls unicast label <label> | type <type>

Displays OSPF route information for the specified MPLS unicast label or type for the instance.

prefix <ip>

Displays OSPF route information for the specified match prefix.

type

Displays information for OSPF route type. The route types include external-type-1, external-type-2, inter-area, intra-area, and ospf-direct.

ipv4 prefix <ip>

Displays OSPF route information for the specified IPv4 prefix.

label <label>

Displays information about the OSPF-labeled routes.

mpls unicast <label | type>

Displays information about OSPF MPLS routes.

area-border

Displays the OSPF Area Border Router (ABR) information. Refer to section "3.1.7. OSPF Route ABR" for the interface configuration details.

autonomous-system-boundary

Displays Autonomous System Border Router information. Refer to section "3.1.7. OSPF Route ABR" for the interface configuration details.

Example: OSPF route information for the default instance

supervisor@rtbrick>SPINE01: op> show ospf route
Instance: default, AFI: ipv4, SAFI: unicast
  Prefix            Area              Type           Cost    Next Hop        Interface
  12.0.0.0/24       0.0.0.0           ospf-direct    10000   n/a             local
  12.1.0.0/24       0.0.0.0           ospf-direct    10000   n/a             local
  24.0.1.0/24       0.0.0.0           inter-area     25000   198.51.100.27   ifl-0/0/0/1
                                                             198.51.100.4    ifl-0/0/0/100
  24.1.1.0/24       0.0.0.0           inter-area     20000   198.51.100.27   ifl-0/0/0/1
                                                             198.51.100.4    ifl-0/0/0/100
  25.0.1.0/24       0.0.0.0           inter-area     35000   198.51.100.27   ifl-0/0/0/1
                                                             198.51.100.4    ifl-0/0/0/100
  198.51.100.15/32  0.0.0.0           ospf-direct    10000   n/a             local
  198.51.100.20/32  0.0.0.0           intra-area     20000   198.51.100.27   ifl-0/0/0/1

OSPF Route Area Border

Displays the OSPF Area Border Router (ABR) information.

Syntax:

show ospf route area-border

Example: OSPF Route ABR information

supervisor@rtbrick>SPINE01: cfg> show ospf route area-border
Instance: default, Area: 198.51.100.0
  Node ID         Cost     Advertising Router    Flags       Interface      Nexthop
  198.51.100.20   10000    198.51.100.20        -|-|-|B      ifl-0/0/0/1    198.51.100.27
  198.51.100.30    20000   198.51.100.30        -|-|-|B      ifl-0/0/0/1    198.51.100.27
  198.51.100.40    55000   198.51.100.40        -|-|-|B      ifl-0/0/0/1    198.51.100.27
  198.51.100.50    55000   198.51.100.50        -|-|-|B      ifl-0/0/0/1    198.51.100.27

OSPF Route Autonomous System Boundary

Displays Autonomous System Boundary Router information.

Syntax:

show ospf route autonomous-system-boundary

Example: OSPF Route ASBR information

supervisor@rtbrick>SPINE01: cfg> show ospf route autonomous-system-boundary
Instance: default, Area:
  Node ID         Cost     Advertising Router  Flags     Interface         Nexthop
  198.51.100.32    40000    198.51.100.20                ifl-0/0/0/1      198.51.100.27

OSPF LSA Request List

Displays the list of all link-state advertisements (LSAs) requests that have been sent or received by a router.

Syntax:

show ospf request-list <options>

Option	Description
-	Without any option,, this command displays the list of all link-state advertisement (LSA) requests that have been sent from the router.
detail	Provides detailed information on the requests that have been sent from the router.

Option

Description

Without any option,, this command displays the list of all link-state advertisement (LSA) requests that have been sent from the router.

detail

Provides detailed information on the requests that have been sent from the router.

Example 1: OSPF LSA requests sent to a neighbor

supervisor@rtbrick>SPINE01: op> show ospf request-list
Instance: default
  Type            Link State ID   Advertising Router          Age        Sequence   Checksum
  Summary-Network 11.0.0.0        198.51.100.20                 42      0x80000003     0x76e5
  Summary-Network 12.0.0.0        198.51.100.20                 42      0x80000003     0x603d
  Summary-Network 12.1.0.0        198.51.100.20                 42      0x80000003     0x481f
  Summary-Network 12.2.0.0        198.51.100.20                 42      0x80000003     0x4aab
  Summary-Network 12.3.0.0        198.51.100.20                 42      0x80000003     0xc5e4
  Summary-Network 23.0.0.0        198.51.100.20                 42      0x80000003     0xd5bb
  Summary-Network 23.1.0.0        198.51.100.20                 42      0x80000003     0xca2a

Example 2: Detailed information for OSPF LSA requests sent to a neighbor

supervisor@rtbrick>SPINE01: op>  show ospf request-list detail
Instance: default LSAs
  LSA ID: 11.0.0.0
    Advertising router: 198.51.100.20, LSA type: Summary-Network, Router ID: 192.168.0.20
    Sequence number: 0x80000003, Checksum: 0x76e5, LSA age: 42
    Interface: hostif-0/0/0/1, Neighbor address: 25.0.1.2
    Length: 0, Options: *|-|-|-|-|-|-|*
  LSA ID: 12.0.0.0
    Advertised router: 198.51.100.20, LSA type: Summary-Network, Router ID: 192.168.0.20
    Sequence number: 0x80000003, Checksum: 0x603d, LSA age: 42
    Interface: hostif-0/0/0/1, Neighbor address: 25.0.1.2
    Length: 0, Options: *|-|-|-|-|-|-|*
  LSA ID: 12.1.0.0
    Advertised router: 198.51.100.20, LSA type: Summary-Network, Router ID: 192.168.0.20
    Sequence number: 0x80000003, Checksum: 0x481f, LSA age: 42
    Interface: hostif-0/0/0/1, Neighbor address: 25.0.1.2
    Length: 0, Options: *|-|-|-|-|-|-|*
  LSA ID: 12.2.0.0
    Advertised router: 198.51.100.20, LSA type: Summary-Network, Router ID: 192.168.0.20
    Sequence number: 0x80000003, Checksum: 0x4aab, LSA age: 42
    Interface: hostif-0/0/0/1, Neighbor address: 25.0.1.2
    Length: 0, Options: *|-|-|-|-|-|-|*

 <...>

OSPF Transmission List

Displays the list of all LSAs waiting to be re-sent or transmitted from the router.

Syntax:

show ospf transmit-list <option>

Option	Description
detail	Provides detailed information on all LSAs waiting to be re-sent.

Option

Description

detail

Provides detailed information on all LSAs waiting to be re-sent.

Example: OSPF LSA requests waiting to be transmitted.

supervisor@rtbrick>SPINE01: op> show ospf transmit-list
Instance: default, Area: 0.0.0.1, Interface: ifl-0/0/4/1, Neighbor: 25.0.1.5
  LSA ID                    LS type                   Advertising router        Transmit interval         Retransmit count
  11.0.0.0                  Summary-Network           198.51.100.20              5000                      1
  12.0.0.0                  Summary-Network           198.51.100.20              5000                      1
  23.0.0.0                  Summary-Network           198.51.100.20              5000                      1
  12.1.0.0                  Summary-Network           198.51.100.20              5000                      1
  23.1.0.0                  Summary-Network           198.51.100.20              5000                      1
  12.2.0.0                  Summary-Network           198.51.100.20              5000                      1
  12.3.0.0                  Summary-Network           198.51.100.20              5000                      1

OSPF Statistics

Displays OSPF statistics information.

Syntax:

show ospf statistics <options>

Option	Description
interface <interface-name>	Displays packet statistics information for the specified interface.
interface <interface-name> detail	Displays detailed packet statistics information for the specified interface.
neighbor <Neighbor-address>	Displays packet statistics information for the specified neighbor.
neighbor <Neighbor-address> <detail>	Displays detailed packet statistics information for the specified neighbor.

Option

Description

interface <interface-name>

Displays packet statistics information for the specified interface.

interface <interface-name> detail

Displays detailed packet statistics information for the specified interface.

neighbor <Neighbor-address>

Displays packet statistics information for the specified neighbor.

neighbor <Neighbor-address> <detail>

Displays detailed packet statistics information for the specified neighbor.

supervisor@rtbrick>SPINE01: op> show ospf statistics interface ifl-0/0/0/1 detail
Instance: default
  Interface: ifl-0/0/0/1, Peer address: 198.51.100.15
    Hello packet:
      Recieved packets: 1185, Sent packets: 2364, Total errors: 0, Unsupported option: 0
      Area mismatch: 0, Area type option mistmatch: 0, Dead interval mismatch: 0
      Hello interval mismatch: 0, Mask mismatch: 0, Self router ID: 0
      Obj add fail: 0, Source address mismatch: 0, Misc: 0
    DD packet:
      Recieved packets: 7, Sent packets: 7, Total errors: 0, Unsupported option: 0
      Invalid state packet rcvd: 0, MTU mismatch: 0, DD obj add fail: 0, Misc: 0, Negotiation fail: 0
      Master bit mismatch: 0, Exchange state init pkt: 0, Capabilities mismatch: 0
      Expected seq mismatch: 0, Full state init pkt: 0
    LS request packet:
      Recieved packets: 0, Sent packets: 0, Total errors: 0, Invalid LSA type: 0
      Invalid state packet rcvd: 0, LSA lookup error: 0, LSA lookup fail: 0
      LSA obj add fail: 0, Misc: 0
    LS update packet:
      Recieved packets: 286, Sent packets: 0, Total errors: 0, Invalid LSA type: 0
      Zero length LSA: 0, LSA length exceeded: 0, LSA checksum fail: 0
      Invalid state packet rcvd: 0, LSA obj add fail: 0, Misc: 0
    Ls ack packet:
      Recieved packets: 24, Sent packets: 7, Total errors: 0, LSA obj add fail: 0
      Invalid state packet rcvd: 0, Misc: 0
    Sanity errors:
      Payload max len error: 0, Payload min len error: 0, Invalid version: 0
      Invalid auth data len: 0, Auth data missing: 0, Invalid packet min len: 0
      Invalid area ID: 0, Invalid network mask: 0, Authentication fail: 0

OSPF Clear Commands

Clear OSPF Neighbor

Clear OSPF neighbor state information.

Syntax:

clear ospf neighbor <options>

Option	Description
-	Without any option, the command clears all the OSPF neighbors.
instance <instance-name>	Clears OSPF neighbor information for the specified instance.
instance <instance-name> area <area-id>	Clears OSPF neighbor for the specified area of the specified instance.
instance <instance-name> area <area-id> interface <interface-name>	Clears OSPF neighbor for the specified interface for the specified area of the specified instance.
force	Forcefully clears all the OSPF neighbors. This may impact DR/BDR election.
force instance <instance-name>	Forcefully clears the neighbor for the specified instance.
force instance <instance-name> area <area-id>	Forcefully clears OSPF neighbor for the specified area of the specified instance.
force instance <instance-name> area <area-id> interface <interface-name>	Forcefully clears OSPF neighbor for a specific interface and area of the specified instance.

Option

Description

Without any option, the command clears all the OSPF neighbors.

instance <instance-name>

Clears OSPF neighbor information for the specified instance.

instance <instance-name> area <area-id>

Clears OSPF neighbor for the specified area of the specified instance.

instance <instance-name> area <area-id> interface <interface-name>

Clears OSPF neighbor for the specified interface for the specified area of the specified instance.

force

Forcefully clears all the OSPF neighbors. This may impact DR/BDR election.

force instance <instance-name>

Forcefully clears the neighbor for the specified instance.

force instance <instance-name> area <area-id>

Forcefully clears OSPF neighbor for the specified area of the specified instance.

force instance <instance-name> area <area-id> interface <interface-name>

Forcefully clears OSPF neighbor for a specific interface and area of the specified instance.

Example:

supervisor@rtbrick>SPINE01: cfg> clear ospf neighbor instance default area 198.51.100.0 interface ifl-0/0/1/100
Instance [default], area[0.0.0.1], interface[ifl-0/0/1/100] clear triggered

Clear OSPF Statistics

Clear the OSPF statistics for all instances or for a specified instance.

Syntax:

clear ospf statistics <options>

Option	Description
-	Without any option, the command clears all the OSPF statistics.
instance <instance-name>	Clears OSPF statistics information for the specified instance.
instance <instance-name> area <area-id>	Clears OSPF statistics for the specified area of the specified instance.
instance <instance-name> area <area-id> interface <interface-name>	Clears OSPF statistics for the specified interface for the specified area of the specified instance.

Option

Description

Without any option, the command clears all the OSPF statistics.

instance <instance-name>

Clears OSPF statistics information for the specified instance.

instance <instance-name> area <area-id>

Clears OSPF statistics for the specified area of the specified instance.

instance <instance-name> area <area-id> interface <interface-name>

Clears OSPF statistics for the specified interface for the specified area of the specified instance.

Example:

supervisor@rtbrick>SPINE01: cfg> clear ospf statistics instance default area 0.0.0.0 interface ifl-0/0/1/1
Cleared statistics for all neighbors under Instance [default] Area [0.0.0.0] Interface [ifl-0/0/1/1]